In /logs/firmware/unblob_extracted/firmware_extract/DIR-600_fw_revb5_214b01_ALL_de_20130122/dir600b_v2.14_d1mg.bin_extract/1179788-3612812.squashfs_v4_le_extract/etc/events/SEALPAC-CLEAR.sh line 2:

dev=`xmldbc -g /runtime/devdata/lanpack`

    ^-- SC2006 (style): Use $(...) notation instead of legacy backticks `...`.

Did you mean:

dev=$(xmldbc -g /runtime/devdata/lanpack)

In /logs/firmware/unblob_extracted/firmware_extract/DIR-600_fw_revb5_214b01_ALL_de_20130122/dir600b_v2.14_d1mg.bin_extract/1179788-3612812.squashfs_v4_le_extract/etc/events/SEALPAC-CLEAR.sh line 3:

cd /var

^-----^ SC2164 (warning): Use 'cd ... || exit' or 'cd ... || return' in case cd fails.

Did you mean:

cd /var || exit

In /logs/firmware/unblob_extracted/firmware_extract/DIR-600_fw_revb5_214b01_ALL_de_20130122/dir600b_v2.14_d1mg.bin_extract/1179788-3612812.squashfs_v4_le_extract/etc/events/SEALPAC-CLEAR.sh line 7:

echo FFFFFFFF > $dev

                ^--^ SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean:

echo FFFFFFFF > "$dev"

For more information:

  https://www.shellcheck.net/wiki/SC2164 -- Use 'cd ... || exit' or 'cd ... |...

  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...

  https://www.shellcheck.net/wiki/SC2006 -- Use $(...) notation instead of le...

[*] Source file SEALPAC-CLEAR.sh